An Improved ERT Approach for the Investigation of Subsurface Structures

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• 作者：De-Bao Lu ; Feng Wang ; Xiao-Dong Chen ; Jian Ou ; Hui Wang
• 关键词：ERT ; SRT ; prior model ; velocity model ; inversion
• 刊名：Pure and Applied Geophysics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：174
• 期：1
• 页码：375-386
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Geophysics/Geodesy;
• 出版者：Springer International Publishing
• ISSN：1420-9136
• 卷排序：174

文摘

The joint use of multiple geophysical data types has been proven to be a powerful tool to both improve subsurface imaging and help in the interpretation process. The main goal of this paper is to develop a multi-geophysical approach for subsurface experimental investigations in which seismic data are used to improve electrical resistivity tomography quality. The basic philosophy of the method is that seismic travel time data will be used to construct the prior model for the resistivity inversion. Synthetic data were employed to demonstrate the improvements enabled by the use of this strategy. Afterwards, the scheme was applied successfully on field data from northwestern China. The outcomes reveal that the multi-geophysical approach improves the interpretation of the subsurface over a single source.